Yarn-catching device for spinning frames



Feb. 10, 1948. A. A. WORTH 2,435,557

YARN-CATCHING DEVICE FOR SPINNING FRAMES V Filed Jan. 29,' 1945 ig-gli'wmf-Mura 15 16 17 .Y .lfm [14 j 6 Y BYQM/.mw

Patented Feb. 1o, 194s UNITED STATES PATENT OFFICE YARN-CATCHING DEVICEFOR SPINNING FRAMES Arthur A. Worth, Lebanon, N. H., assigner to WhitinMachine Works, Whitinsville, Mau., a corporation o! MassachusettsAppiieaiian January ze, 1945, serial No. 575,011

led to a single twister head and bobbin, thus producing irregular andoverweight yarn.. This condition may continue for a considerable periodbefore detection by the operator, and much waste yarn may therebyresult.

It is the general object of my invention topro-l vide a device whichwill catch and break a double or overweigh+J yarn in a spinning frame assoon as it begins to form.

To the attainment of this object, I provide a yarn-catching device whichis clear of the balloon area of a normal or single yarn but which iswithin the balloon area of an over-size or double yarn. I also provide adevice which is operative to catch and break an over-size yarn,regardless of the direction of rotation of the spindle.

My invention further relates to arrangements and combinations of partswhich will be hereinafter described and more particularly pointed out inthe appended claims.

A preferred form of the invention is shown in the drawings, in whichFig. l is a perspective view of parts of a wool spinning frame embodyingmy improvements:

Fig. 2 is a front elevation of two adjacent spindles and an interposedseparator; t

Fig. 3 i-s a detail side elevation showing the preferred position of myyam-catching device relative to the balloon area;

Fig. 4 is a fragmentary plan view illustrating the operation of myyarn-catching device;

Fig. 5 is an enlarged plan view of a yarn-catching member; and

Fig. 6 is a detail sectional view, taken along the line 6 8 in Fig. 5.A

Referring to the drawings. I have shown my invention embodied in a woolspinning frame of i conventional design and comprising a frame IIIcylinder or drum I1. The rovings are wound on the jack spool insuccessive sections Ia, and rovings R from separate sections aredelivered to the twister heads I5 in the usual manner.

The rovings R. then pass through yarn guides 2li lto spinning rings (notshown) on the ring rail II and the Ayarns Y thus formed are wound onbobbins B.V 1

'I'he spindles 22 (Fig. 2) and bobbins B rotate at substantial speed, sothat adjacent yarns Y are thrown outward and balloon as indicated inFig. 2. The usual separators 2l are provided between adjacent spindlesto prevent the ballooning yarns from engaging each other.

All of the constructions thus far described is of the usual type and initself forms no part of my present invention. Y

As previously stated, rovings from adjacent sections I6a oi' the jackspool I6 sometimes become entangled or otherwise associated, so thattwo'rovings will be directed to a. single twister head I5 and bobbin B.When this occurs,`the extra weight of the over-size or double yarncauses a substantial increase in the balloon area, as inf dicated at Y'in Flan 4.

My improvedfyarn-catching device consistsof a series of more-or-lessT-shaped members III (Fig. 5) each having a double-horned head 3| and astem 32. The stems" are mounted for adjustment in aber 35, which bar inturn is mounted at the rear of thespindles 22 and extends longitudinallyof the spinning frame. The members 30 are preferably positioned directlyrearward of the associated spindles 22 substantially as indicated inFigs. 3 and 4, so that the heads 3| thereof are just clear of theA yarnY in its normal balloon path. If, however, the yarn is increased inweight so that it assumes the position Y in Fig. 4, the yarn will becaught in one of the horns of the head 3l and continued rotation of thespindle will promptly break the yarn. The doubled roving will then windup .on the usual scavenger roll until conditions are corrected by theoperator.

If the direction of rotation of the spindle is reversed, the doubledyarn is caught on the opposite horn of the head 3|, and the same resultis achieved.

The balloon area varies with the size oi the yarn and with the speed ofthe spindles. The

members 3U are preferably so adjusted that they are just outside ofthecorrect balloon area for the particular size of yarn and speed ofrotation encountered.

The bar 35 on which the devices 30 are mounted 3 ls preferably rotatablysupported on the frame I0 and is-provided with a handle 40 which may belatched to a notched segment 4l to hold the bar 35 and members 30 in anydesired angular position. Relative adjustment between the members 30 andthe yarns Y may thus be additionally obtained by angularly adjusting thebar 35 to raise or lower the members 3D.

The heads 3| of the members 30 may deslrably be formed of continuouspieces of wire, see Fig. 6, bent as indicated in Fig. 5 and having theiradjacent rear ends secured to the supporting stem 30 by welding or anyother convenient manner. It will be understood, however. that myinvention is not limited to this speciiic construction.

From the foregoing description, it will be evident that I have providedvery simple and eilicient means for catching and breaking a, double orover-size yarn in a spinning frame, while at the same time there is nointerference with the usual operation of the machine.

I have described my invention as embodied in a machine designed forspinning wool, but the utility of my invention is not limited to thespinning of any particular material.

Having thus described my invention and the advantages thereof, I do notwish to be limited to the details herein disclosed, otherwise than asset forth in the claims, but what I claim is:

1. In a, Wool spinning frame, a yarn-catching member comprising a stemand a head secured thereto and having rearwardly disposed yarncatchingend portions, said head being. formed of a single piece of wire doubledupon itself and hav- 85- ing its ends extending rearward and secured tothe front end of said stem.

2. In a wool spinning frame having a ilxed ring rail and verticallymovable spindles and having yarn guides which have a vertically xedoper- 40 atlve position, in combination, a yarn-catching devicecomprising a longitudinal support anda series of yarn-catching membersspaced along said support and secured thereto, each member beingpositioned directly rearward of its associated spindle and adjacent thenormal maximum balloon area of an associated yarn and substantially inthe horizontal plane vertically midway between the fixed ring rail andthe vertically fixed yarn guides, and each yam-catching device having alaterally projecting portion effective to engage and break an over-size'yarn on excessive ballooning thereof. a

REFERENCES CITED The following references are of record in the ille ofthis patent:

UNITED STATES PATENTS Number Name Date 270,179 Chase Jan. 2, 1883275,020 Chase Apr. 3, 1883 1,549,288 Borovoy Aug. 11, 1925 FOREIGNPATENTS Number Country Date y 14,315 Great Britain Nov. 9, 1905 22,474Great Britain 1902 32,877 Germany Sept. 2, 1885 319,872 France ..1 Aug.2, 1902 750,202 France May 22, 1933

